class_docstr: Patch a callback output value
  
  Act like a proxy of the output prop value on the frontend.
  
  Supported prop types: Dictionaries and lists.
code: def __init__(self, location=None, parent=None):
      if location is not None:
          self._location = location
      else:
          # pylint: disable=consider-using-ternary
          self._location = (parent and parent._location) or []
      if parent is not None:
          self._operations = parent._operations
      else:
          self._operations = []
  
label_desc: Use image node_id 1 to create a new Patch object  with example: obj = Patch(location, parent)